公开(公告)号：US20240315615A1

公开(公告)日：2024-09-26

申请号：US18610147

申请日：2024-03-19

Applicant: Lextar Electronics Corporation

Inventor： Kai-Hung CHENG ,  Ku-Cheng LIN ,  Chun-Min LIN ,  Ke-Wei LIU

IPC: A61B5/1455

CPC classification number: A61B5/14552

Abstract: A detection element of biological subcutaneous features and a wearable device thereof are provided. The element for detecting biological subcutaneous features has a substrate, a light-detecting semiconductor chip, a grid structure, and a cover. The light-detecting semiconductor chip is located on the substrate for detecting red light or near-infrared light signals. The grid structure including a plurality of opaque light-absorbing blocking walls is located on the light-detecting semiconductor chip for blocking side light and increasing the proportion of near-vertical incident light. The cover is located on the grid structure and serves as a protection lid. The wearable device for detecting biological subcutaneous features has more than one light source of red light or near-infrared light and a plurality of detection elements. The arrangement of the opaque light-absorbing blocking walls that are parallel to each other are substantially parallel to the light-emitting directions of the light source.

公开(公告)号：US20230011488A1

公开(公告)日：2023-01-12

申请号：US17654595

申请日：2022-03-14

Applicant: Lextar Electronics Corporation

Inventor： Ke-Wei LIU ,  Yen-Chih CHOU ,  Ming-Jing LEE

IPC: H01L31/173 ,  H01L31/02 ,  H01L31/0203 ,  H01L31/0232

Abstract: A detection device includes a substrate, a light-emitter, and a light receiver. The substrate includes a first surface area and a second surface area, in which the first surface area has a first reflectance greater than a second reflectance of the second surface area. The light emitter is disposed on the first surface area, and the light receiver is disposed on the second surface area. The light receiver has a third reflectance which is substantially the same as the second reflectance of the second surface area.